Bump rollup-plugin-typescript2 in /token-lending/js (#655)

Bumps [rollup-plugin-typescript2](https://github.com/ezolenko/rollup-plugin-typescript2) from 0.27.3 to 0.28.0.
- [Release notes](https://github.com/ezolenko/rollup-plugin-typescript2/releases)
- [Commits](https://github.com/ezolenko/rollup-plugin-typescript2/compare/0.27.3...0.28.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

token-lending/js/package-lock.json

@@ -2272,9 +2272,9 @@
       }
     },
     "rollup-plugin-typescript2": {
-      "version": "0.27.3",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-typescript2/-/rollup-plugin-typescript2-0.27.3.tgz",
-      "integrity": "sha512-gmYPIFmALj9D3Ga1ZbTZAKTXq1JKlTQBtj299DXhqYz9cL3g/AQfUvbb2UhH+Nf++cCq941W2Mv7UcrcgLzJJg==",
+      "version": "0.28.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-typescript2/-/rollup-plugin-typescript2-0.28.0.tgz",
+      "integrity": "sha512-kk+146r8LfvsscytH94W1zgKrNx2anvC5AQReBtkE8WowBWuoFCIFoULUrC+DI5Ga4zVrCaBk6MUq3GZGTcLnQ==",
       "dev": true,
       "requires": {
         "@rollup/pluginutils": "^3.1.0",

token-lending/js/package.json

@@ -61,7 +61,7 @@
     "rollup-plugin-json": "^4.0.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-sourcemaps": "^0.6.3",
-    "rollup-plugin-typescript2": "^0.27.3",
+    "rollup-plugin-typescript2": "^0.28.0",
     "ts-node": "^9.0.0",
     "typescript": "^4.0.3"
   },